TM-9-2320-361-20
2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)
TECHNICAL MANUAL; UNIT MAINTENANCE
OCTOBER 1991
TM-9-2320-361-20 - Page 647 of 1207
TM 9-2320-361-20
8-30. QUICK-DISCONNECT COUPLING HALF MAINTENANCE
This task covers:
a. Leak Test
c. Installation
b. Removal
INITIAL SETUP:
APPLICABLE MODELS
EQUIPMENT CONDITION
All
Parking brake set (TM 9-2320-361-10).
MATERIALS/PARTS
Air reservoirs drained (TM 9-2320-361-10).
Seal
GENERAL SAFETY INSTRUCTIONS
Detergent (Appendix C, Item 12)
Do not disconnect air couplings before draining air
Antiseize tape (Appendix C, Item 27)
reservoirs.
REFERENCES (TM]
TM 9-2320-361-10
TM 9-2320-361-20P
a. Leak Test
1. Start engine (TM 9-2320-361-10) and buildup air pressure.
2. With dummy coupling (4) locked to coupling half (5), turn valve handle (1) to open position.
3. Test dummy coupling (4) and coupling seal (3) for leaks by coating with soapy water. Check if
coupling seal (3) is leaking by watching for air bubbles. If leaking or damaged, replace.
4. Turn valve handle (1) to aline with coupling half (5).
5. Stop engine (TM 9-2320-361-10).
Do not disconnect air couplings before draining air reservoirs.
Small parts under pressure may shoot out with high velocity,
causing injury to personnel.
1. Remove dummy coupling (4) from coupling half (5).
2. Remove coupling half (5) from nipple (2).
NOTE
Perform step 3 only if coupling seal is damaged or leaking.
3. Remove coupling seal (3) from coupling half (5). Clean all coupling seal (3) remains from coupling
half (5).
c. Installation
●
●
NOTE
Perform step 1 if coupling was removed.
Wrap male pipe threads with antiseize tape before installation.
1. Install new coupling seal (3) in coupling half (5).
2. Install coupling half (5) on nipple (2).
3. Install dummy coupling (4) on coupling half (5).
8-74
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